Reduces frictions creation of thermal energy A: lubricant
B: electric heater
C: cell phone

Which compound contain an iron with a 3+ charge

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next